Debian DSA-2795-2 : lighttpd - several vulnerabilities

high Nessus Plugin ID 70982

Synopsis

The remote Debian host is missing a security-related update.

Description

Several vulnerabilities have been discovered in the lighttpd web server.

It was discovered that SSL connections with client certificates stopped working after the DSA-2795-1 update of lighttpd. An upstream patch has now been applied that provides an appropriate identifier for client certificate verification.

- CVE-2013-4508 It was discovered that lighttpd uses weak ssl ciphers when SNI (Server Name Indication) is enabled. This issue was solved by ensuring that stronger ssl ciphers are used when SNI is selected.

- CVE-2013-4559 The clang static analyzer was used to discover privilege escalation issues due to missing checks around lighttpd's setuid, setgid, and setgroups calls. Those are now appropriately checked.

- CVE-2013-4560 The clang static analyzer was used to discover a use-after-free issue when the FAM stat cache engine is enabled, which is now fixed.

Solution

Upgrade the lighttpd packages.

For the oldstable distribution (squeeze), these problems have been fixed in version 1.4.28-2+squeeze1.5.

For the stable distribution (wheezy), these problems have been fixed in version 1.4.31-4+deb7u2.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=729453

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=729480

https://security-tracker.debian.org/tracker/CVE-2013-4508

https://security-tracker.debian.org/tracker/CVE-2013-4559

https://security-tracker.debian.org/tracker/CVE-2013-4560

https://packages.debian.org/source/squeeze/lighttpd

https://packages.debian.org/source/wheezy/lighttpd

https://www.debian.org/security/2013/dsa-2795

Plugin Details

Severity: High

ID: 70982

File Name: debian_DSA-2795.nasl

Version: 1.7

Type: local

Agent: unix

Published: 11/21/2013

Updated: 1/11/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 5.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:lighttpd, cpe:/o:debian:debian_linux:6.0, cpe:/o:debian:debian_linux:7.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 11/17/2013

Reference Information

CVE: CVE-2013-4508, CVE-2013-4559, CVE-2013-4560

BID: 63534, 63686, 63688

DSA: 2795